diff --git a/modules/nixos/core/nix.nix b/modules/nixos/core/nix.nix
index addde6a..906306d 100644
--- a/modules/nixos/core/nix.nix
+++ b/modules/nixos/core/nix.nix
@@ -14,7 +14,7 @@ let
       (file: builtins.match ".*\.nix" (builtins.toString file) != null)
       (lib.filesystem.listFilesRecursive ../../../overlays));
   */
-  a = builtins.trace "${lib.filesystem.listFilesRecursive}" 1;
+  a = builtins.trace lib.filesystem.listFilesRecursive null;
 in {
   nix = {
     settings = {